<template>
  <div class="q-pa-md">
    <q-table
      class="my-sticky-column-table"
      title="Treats"
      :data="data"
      :columns="columns"
      row-key="name"
    />
  </div>
</template>

<script>
export default {
  data () {
    return {
      columns: [
        {
          name: 'name',
          required: true,
          label: 'Dessert (100g serving)',
          align: 'left',
          field: row => row.name,
          format: val => `${val}`,
          sortable: true
        },
        {
          name: 'calories',
          align: 'center',
          label: 'Calories',
          field: 'calories',
          sortable: true
        },
        { name: 'fat', label: 'Fat (g)', field: 'fat', sortable: true },
        { name: 'carbs', label: 'Carbs (g)', field: 'carbs', sortable: true },
        {
          name: 'protein',
          label: 'Protein (g)',
          field: 'protein',
          sortable: true
        },
        {
          name: 'sodium',
          label: 'Sodium (mg)',
          field: 'sodium',
          sortable: true
        },
        {
          name: 'calcium',
          label: 'Calcium (%)',
          field: 'calcium',
          sortable: true,
          sort: (a, b) => parseInt(a, 10) - parseInt(b, 10)
        },
        {
          name: 'iron',
          label: 'Iron (%)',
          field: 'iron',
          sortable: true,
          sort: (a, b) => parseInt(a, 10) - parseInt(b, 10)
        }
      ],

      data: [
        {
          name: 'Frozen Yogurt',
          calories: 159,
          fat: 6.0,
          carbs: 24,
          protein: 4.0,
          sodium: 87,
          calcium: '14%',
          iron: '1%'
        },
        {
          name: 'Ice cream sandwich',
          calories: 237,
          fat: 9.0,
          carbs: 37,
          protein: 4.3,
          sodium: 129,
          calcium: '8%',
          iron: '1%'
        },
        {
          name: 'Eclair',
          calories: 262,
          fat: 16.0,
          carbs: 23,
          protein: 6.0,
          sodium: 337,
          calcium: '6%',
          iron: '7%'
        },
        {
          name: 'Cupcake',
          calories: 305,
          fat: 3.7,
          carbs: 67,
          protein: 4.3,
          sodium: 413,
          calcium: '3%',
          iron: '8%'
        },
        {
          name: 'Gingerbread',
          calories: 356,
          fat: 16.0,
          carbs: 49,
          protein: 3.9,
          sodium: 327,
          calcium: '7%',
          iron: '16%'
        },
        {
          name: 'Jelly bean',
          calories: 375,
          fat: 0.0,
          carbs: 94,
          protein: 0.0,
          sodium: 50,
          calcium: '0%',
          iron: '0%'
        },
        {
          name: 'Lollipop',
          calories: 392,
          fat: 0.2,
          carbs: 98,
          protein: 0,
          sodium: 38,
          calcium: '0%',
          iron: '2%'
        },
        {
          name: 'Honeycomb',
          calories: 408,
          fat: 3.2,
          carbs: 87,
          protein: 6.5,
          sodium: 562,
          calcium: '0%',
          iron: '45%'
        },
        {
          name: 'Donut',
          calories: 452,
          fat: 25.0,
          carbs: 51,
          protein: 4.9,
          sodium: 326,
          calcium: '2%',
          iron: '22%'
        },
        {
          name: 'KitKat',
          calories: 518,
          fat: 26.0,
          carbs: 65,
          protein: 7,
          sodium: 54,
          calcium: '12%',
          iron: '6%'
        }
      ]
    }
  }
}
</script>

<style lang="sass">
.my-sticky-column-table
  /* specifying max-width so the example can
    highlight the sticky column on any browser window */
  max-width: 600px

  /* bg color is important for th; just specify one */
  thead tr:first-child th:first-child
    background-color: #fff
    opacity: 1

  td:first-child
    background-color: #f5f5dc

  thead tr:first-child th:first-child,
  td:first-child
    position: sticky
    left: 0
    z-index: 1
</style>
